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If the angles of a triangle ABC are in A...

If the angles of a triangle `ABC` are in `A.P.`, then

A

`c^(2)=a^(2)+b^(2)-ab`

B

`b^(2)=a^(2)+c^(2)-ac`

C

`a^(2)=b^(2)+c^(2)-ac`

D

`b^(2)=a^(2)+c^(2)`

Text Solution

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The correct Answer is:
B
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TARGET PUBLICATION-TRIGONOMETRIC FUNCTIONS -Critical Thinking
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  13. In any DeltaABC,("tan"(A)/(2)-"tan"(B)/(2))/("tan"(A)/(2)+"tan"(B)/(2)...

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